|
MC74VHC14 Datasheet, PDF (4/6 Pages) Motorola, Inc – Hex Schmitt Inverter | |||
|
◁ |
MC74VHC14
A 50%
tPLH
Y 50% VCC
VCC
GND
tPHL
Figure 1. Switching Waveforms
4
3
2
1
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
* Includes all probe and jig capacitance
Figure 2. Test Circuit
(VT+)
(VTâ)
VHtyp
2
3
4
5
6
VCC, POWER SUPPLY VOLTAGE (VOLTS)
VHtyp = (VT+ typ) â (VTâ typ)
Figure 3. Typical Input Threshold, VT+, VTâ versus Power Supply Voltage
(a) A SchmittâTrigger Squares Up Inputs With Slow Rise and Fall Times
VCC
VH
Vin
VT+
VTâ
GND
(b) A SchmittâTrigger Offers Maximum Noise Immunity
VCC
VH
Vin
VT+
VTâ
GND
VOH
VOH
Vout
Vout
VOL
VOL
Figure 4. Typical SchmittâTrigger Applications
MOTOROLA
INPUT
Figure 5. Input Equivalent Circuit
4
VHC Data â Advanced CMOS Logic
DL203 â Rev 1
|
▷ |